These bug starts after last update. (PC Steam)
How to reproduce.
Play Chaos Wastes (no mater the mission) an upgrade ur weapone during playthroug. No matter how many times u upgrade a weapone during the missions, it will not change it skin. After that on the lobbie check on ur inventory all available skins for that weapone and u will notice that all not unlocked skins 4 that weapone are gone. And if u go to the shop you will see those skins are gone from the shop as well.
How to fix it: restart the game and all skins come back.
That bug only affects at not unlocked weapone skins.
I fear that this error may also affect unlocking new skins for the type of weapon but I can’t comfirm that last point.

